58 extern void rb_free(struct ring_buffer *rb);
62 	struct ring_buffer *rb;  in rb_free_rcu()  local
64 	rb = container_of(rcu_head, struct ring_buffer, rcu_head);  in rb_free_rcu()
65 	rb_free(rb);  in rb_free_rcu()
71 extern int rb_alloc_aux(struct ring_buffer *rb, struct perf_event *event,
73 extern void rb_free_aux(struct ring_buffer *rb);
75 extern void ring_buffer_put(struct ring_buffer *rb);
77 static inline bool rb_has_aux(struct ring_buffer *rb)  in rb_has_aux()  argument
79 	return !!rb->aux_nr_pages;  in rb_has_aux()
86 perf_mmap_to_page(struct ring_buffer *rb, unsigned long pgoff);
95 static inline int page_order(struct ring_buffer *rb)  in page_order()  argument
97 	return rb->page_order;  in page_order()
102 static inline int page_order(struct ring_buffer *rb)  in page_order()  argument
108 static inline unsigned long perf_data_size(struct ring_buffer *rb)  in perf_data_size()  argument
110 	return rb->nr_pages << (PAGE_SHIFT + page_order(rb));  in perf_data_size()
113 static inline unsigned long perf_aux_size(struct ring_buffer *rb)  in perf_aux_size()  argument
115 	return rb->aux_nr_pages << PAGE_SHIFT;  in perf_aux_size()
135 			struct ring_buffer *rb = handle->rb;		\
138 			handle->page &= rb->nr_pages - 1;		\
139 			handle->addr = rb->data_pages[handle->page];	\
140 			handle->size = PAGE_SIZE << page_order(rb);	\